In this video, I have shown how to design a simple motion sensor switch on a breadboard using the IR module and CD4017 IC for the toilet light bulb in the home.

I have received the required Electronics components from lcsc.com for this project.

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Required Components with LCSC.com purchase link:

1) CD4017 IC - 1 no - [ Ссылка ]
2) BC547 Transistor - 1 no- [ Ссылка ]
3) 100uF Capacitor - 1 no- [ Ссылка ]
4) 220-ohm 0.25watt Resistors - 2 no [ Ссылка ]
5) LED 5mm - 1 no- [ Ссылка ]
6) 1N4007 Diode - 1 no- [ Ссылка ]
7) 5 v SPDT (250VAC) Relay - 1 no- [ Ссылка ]
8) BreadBoard - 1 no [ Ссылка ]
9) connecting wire
10) 9v battery or Mobile charger

Components for the IR Module-

11) LM358 Op-Amp- 1 no [ Ссылка ]
12) 5mm LED (any color) - 1 no [ Ссылка ]
13) 220-ohm 0.25watt Resistors - 1 no [ Ссылка ]
14) 10k 0.25watt Resistor - 1no [ Ссылка ]
15) 1k 0.25 watt Resistor - 1no [ Ссылка ]
16) 10k Variable Resistor - 1no [ Ссылка ]
17) IR Transmitter Receiver Pair - 1 set
18) Zero PCB - 1 no- [ Ссылка ]

You can refer to the following video to make the IR module circuit or you can buy the IR module from any website:
How to make IR Module: [ Ссылка ]

In this project, I have controlled the 220v 9 watt LED lamp by using the motion sensor switch. The motion sensor circuit automatically turns on and off the toilet light if someone enters and exit the toilet. The circuit is similar to the pir sensor. Here I have used a CD4017 ic and IR module to design the motion sensor circuit.
After watching the complete video anybody can design the circuit but for the daily use, I will suggest to make the circuit on PCB which I will show in my upcoming video.

This project is also part of DIY Home Automation as the motion sensor switch saves the electrical energy as it turns off the light automatically when it not required.

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